/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.springframework.security.config.http;

import org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter;


/**
 * Stores the default order numbers of all Spring Security filters for use in configuration.
 *
 * @author Luke Taylor
 * @author Rob Winch
 */

enum SecurityFilters {
    FIRST (Integer.MIN_VALUE),
    CHANNEL_FILTER,
    SECURITY_CONTEXT_FILTER,
    CONCURRENT_SESSION_FILTER,
    /** {@link WebAsyncManagerIntegrationFilter} */
    WEB_ASYNC_MANAGER_FILTER,
    HEADERS_FILTER,
    CSRF_FILTER,
    LOGOUT_FILTER,
    X509_FILTER,
    PRE_AUTH_FILTER,
    CAS_FILTER,
    FORM_LOGIN_FILTER,
    OPENID_FILTER,
    LOGIN_PAGE_FILTER,
    DIGEST_AUTH_FILTER,
    BASIC_AUTH_FILTER,
    REQUEST_CACHE_FILTER,
    SERVLET_API_SUPPORT_FILTER,
    JAAS_API_SUPPORT_FILTER,
    REMEMBER_ME_FILTER,
    ANONYMOUS_FILTER,
    SESSION_MANAGEMENT_FILTER,
    EXCEPTION_TRANSLATION_FILTER,
    FILTER_SECURITY_INTERCEPTOR,
    SWITCH_USER_FILTER,
    LAST (Integer.MAX_VALUE);

    private static final int INTERVAL = 100;
    private final int order;

    private SecurityFilters() {
        order = ordinal() * INTERVAL;
    }

    private SecurityFilters(int order) {
        this.order = order;
    }

    public int getOrder() {
       return order;
    }
}
